CN109869719A - A kind of high temperature and pressure porous media combustor - Google Patents
A kind of high temperature and pressure porous media combustor Download PDFInfo
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- CN109869719A CN109869719A CN201910164087.9A CN201910164087A CN109869719A CN 109869719 A CN109869719 A CN 109869719A CN 201910164087 A CN201910164087 A CN 201910164087A CN 109869719 A CN109869719 A CN 109869719A
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- pressure
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- porous media
- high temperature
- cooling chamber
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Abstract
A kind of high temperature and pressure porous media combustor, including high-pressure gas import, air intlet, combustion chamber, porous media, electronic ignition device and cooling chamber etc..Burner combustion region is pyramidal structure, and porous media is filled in it, and mixed gas generates high temperature and high pressure gas in burning porous medium internal combustion.Insulating layer is set on the inside of burner and cooling chamber.There are cavity between burner outer wall and cooling chamber, cooling air is flowed into from the bottom of cavity, is flowed out from upside.In burner outlet, relief valve, pressure regulator valve and pressure gauge are set.It is arranged by this, the working medium of high temperature and pressure can be provided for equipments such as gas turbines, is can be realized compared with the high circulation thermal efficiency, reduces heat loss, energy saving and reduction pollutant emission.
Description
Technical field
The present invention relates to a kind of burner, in particular to a kind of porous media combustor suitable for high temperature and pressure belongs to
Technical field of combustion equipment.
Background technique
China's rapid economic development needs to consume a large amount of energy, while to take into account environmental protection, walks the mankind and assists naturally
Readjust the distribution the sustainable development path of exhibition.However China is faced with that energy supply and demand is particularly thorny, environmental pollution is on the rise and ecology
A series of problems, such as by sustaining breakdown.Wherein energy resource supply anxiety may become the weak link of China's economic development.Cause
This, widens the diversification, excavation and exploitation of energy resource supply channel using low-grade or low heat value the energy while seeking to be conducive to
The high performance clean burning technology of environmental protection can undoubtedly become the strong support to solve the above problems.
Burning of the premixed gas in porous media, with applied widely, power-adjustable range is big, pollutant emission is low
The advantages that, worldwide just become an emerging research hotspot by more and more extensive research and concern.Porous Jie
Matter burner is widely used, such as: civilian heater and warm-air drier；With premixed industrial burner use in conjunction
Air heating system, steam boiler and vehicle heating system etc.；It is acted on using the accumulation of heat of porous media, using shuttle burning
Mode realizes mine exhaust gas, Harmful Waste and processing of various wastes etc., has heat load intensity big, power regulating range
Extensively, the wide advantages such as low with pollutant emission of rich or poor Flammability limits.
It can be seen that multi-hole medium combustion technology can not only substitute conventional burner, more excellent effect is obtained,
It can also be used in the occasion that conventional combustion device can not be applied, new combustion technology application field be opened, in civilian and work
It has broad application prospects and realistic meaning in industry application.But porous media combustor works under normal pressure mostly,
And it is seldom as the porous media combustor of working medium for the application such as gas turbine high temperature and high pressure flue gas.Therefore, a kind of benefit is needed
It is realized with high pressure ratio compared with the high circulation thermal efficiency, high temperature and pressure porous media combustor that is energy saving, reducing pollutant emission, this
Invention exactly proposes in this background.
Summary of the invention
The purpose of the present invention is to provide a kind of porous media combustor of high temperature and pressure, which passes through in high pressure
In the case of so that air mixture is burnt inside porous media, keep efficiency of combustion higher, it is energy saving, reduce pollutant row
It puts, the high temperature and high pressure gas of generation is flowed out from burner outlet, high temperature and pressure needed for providing work for equipments such as gas turbines
Working medium.
To achieve the above object, the present invention is achieved by the following technical solutions:
A kind of high temperature and pressure porous media combustor, including high-pressure gas import, air intlet, combustion chamber, porous media, electronics
Igniter and cooling chamber etc..The combustion zone of burner is pyramidal structure, and porous media is filled in it.In the burning
Insulating layer is set on the inside of device and cooling chamber.There are cavity between burner outer wall and cooling chamber, cooling air is from the bottom of cavity
Portion flows into, and flows out from upside.In burner outlet, relief valve, pressure regulator valve and pressure gauge are set.
The burner inlet is pyramidal structure, is in flaring shape, and tilt angle is 20 °.
The burner outlet is pyramidal structure, is in gradually-reducing shape, and tilt angle is 20 °.
The porous media, void density 30ppi, porosity 80-90%, material are Alumina Foam Ceramics.
The burner wall surface uses high temperature resistant stainless steel material.
The principle of the present invention is: high-pressure gas (0.1MPa-20 MPa) and compressed air enter in the burner of flaring shape,
Flow velocity reduces, and carries out stablizing burning in porous media hole, cooling air is from burner base combustor cavity, to combustion
Burner outside wall surface is cooled down.The high temperature and high pressure flue gas generated of burning is flowed out from the burner outlet of gradually-reducing shape, passes through pressure regulator valve
Pressure is adjusted, required pressure is reached.When because the factors such as misoperation or detonation cause operating pressure be more than work normally
At 1.2 times of pressure, by relief valve pressure release, equipment and operator's safety are protected.
Compared with prior art, advantages of the present invention and effect are: (1) burner of the invention inputs high-pressure gas
(0.1MPa-20MPa) and air realize that mixed gas is burnt in burner internal, can be to combustion by the way that pressure regulator valve is arranged
Pressure inside burner is adjusted, and realizes compared with high thermal efficiency, reduces heat loss, energy saving and reduction pollutant emission.(2)
The burner inlet uses the pyramidal structure of flaring shape, can carry out reduction of speed to entrance combustion gas, the expansion after meeting fuel gas buring
It needs, while flame stabilization being burnt inside porous media, effectively prevent from being tempered, improve the stability of flame.
(3) burner can greatly improve burner radiant heat transfer performance compared with free style flame burner, conduct heat more evenly, and
The rich or poor Flammability limits for being applicable in fuel is wider, and the low-BTU gas such as mine gas, chemical emission, biogas can be used as the combustion
The fuel of burner.
Detailed description of the invention
Fig. 1 is a kind of high temperature and pressure porous media combustor structural schematic diagram.
Wherein, 1, high-pressure gas import 2, air intlet 3, cooling air inlet 4, electronic ignition device 5, insulating layer
6, pressure gauge 11, relief valve 12, cooling are empty before pressure gauge 10, pressure regulation after porous media 7, pipeline 8, pressure regulator valve 9, pressure regulation
Gas outlet 13, burner wall surface 14, cooling chamber outer wall 15, combustor cavity.
Specific embodiment
According to Fig. 1 specific structure that the present invention will be described in detail.Burner of the invention includes high-pressure gas import 1, air
Import 2, porous media 6, electronic ignition device 4 and cooling chamber etc..Combustor inlet is arranged to the pyramidal structure of 20 ° of flaring shapes,
To carry out reduction of speed to entrance combustion gas, stablize burning.Burner outlet is arranged to the pyramidal structure of 20 ° of gradually-reducing shapes, accelerates flue gas stream
Pipeline out.The porous media 6 of burner internal uses void density for 30ppi, and the Alumina Foam that porosity is 80-90% is made pottery
Porcelain keeps gaseous mixture residence time in burner elongated with preferable circulation, keeps burning more abundant, stable.Due to
Ignition temperature of the gaseous mixture in porous media is about 2000K, therefore, insulating layer 5 is arranged in burner and cooling chamber interior walls, rises
To the effect of insulation.There are combustor cavity 15 between inside and outside wall, cooling air is flowed into from the bottom of cavity, from upside
Outflow carries out cooling down to burner wall surface.Relief valve 11, pressure regulator valve 8 and pressure gauge are set on burner outlet pipeline 7
9 and pressure gauge 10.When causing operating pressure to be more than 1.2 times of service pressure because of factors such as misoperation or detonations, lead to
11 pressure release of relief valve is crossed, equipment and operator's safety are protected.By pressure gauge 10 before pressure regulation, to the pressure of burner internal into
Row real time monitoring, and according to required pressure, pressure regulator valve 8 is adjusted, is monitored by pressure gauge 9 after pressure regulation.
The course of work of the invention is as follows: high-pressure gas (0.1MPa-20MPa) and compressed air from high pressure gas cylinder in proportion
Outflow after electronic ignition device igniting, is carried out stablizing burning in porous media region, be burnt into the burner of flaring shape
The high temperature and high pressure flue gas of generation is flowed out from the outlet of gradually-reducing shape.Pressure gauge and pressure regulator valve are installed on pipeline, it can be to burner
Internal pressure is adjusted, pressure ratio needed for being arranged.Relief valve is set on the burner, plays the role of decompression protection.It is cooling empty
Gas is flowed into from cooling air inlet, by circular passage, is flowed out from cooling air outlet, cool down to burner outer wall face cold
But.
Claims (4)
1. a kind of high temperature and pressure porous media combustor, including high-pressure gas import, air intlet, combustion chamber, porous media, electricity
Sub- igniter and cooling chamber etc., burner combustion region are pyramidal structures, and porous media is filled in it, in the burning
Insulating layer is set on the inside of device and cooling chamber, and there are cavity between burner outer wall and cooling chamber, cooling air is from the bottom of cavity
Portion flows into, and flows out from upside, and relief valve, pressure regulator valve and pressure gauge is arranged in burner outlet.
2. a kind of high temperature and pressure porous media combustor according to claim 1, which is characterized in that the burner enters
Mouth is pyramidal structure, is in flaring shape, and tilt angle is 20 °.
3. a kind of high temperature and pressure porous media combustor according to claim 1, which is characterized in that the burner goes out
Mouth is pyramidal structure, is in gradually-reducing shape, and tilt angle is 20 °.
4. a kind of high temperature and pressure porous media combustor according to claim 1, which is characterized in that porous Jie
Matter, void density 30ppi, porosity 80-90%, material are Alumina Foam Ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164087.9A CN109869719A (en) | 2019-03-05 | 2019-03-05 | A kind of high temperature and pressure porous media combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164087.9A CN109869719A (en) | 2019-03-05 | 2019-03-05 | A kind of high temperature and pressure porous media combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109869719A true CN109869719A (en) | 2019-06-11 |
Family
ID=66919819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910164087.9A Withdrawn CN109869719A (en) | 2019-03-05 | 2019-03-05 | A kind of high temperature and pressure porous media combustor |
Country Status (1)
| Country | Link |
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| CN (1) | CN109869719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853771A (en) * | 2020-07-28 | 2020-10-30 | 北京理工大学 | Liquid fuel porous medium combustor with cold flame pre-evaporation function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10344979A1 (en) * | 2003-09-27 | 2005-04-28 | Gvp Ges Zur Vermarktung Der Po | Device for evaporating and/or burning substances has device for electrically heating porous body and pores forming pore chamber have pore size that enables combustion |
| CN1740639A (en) * | 2005-09-21 | 2006-03-01 | 浙江大学 | Reciprocating multi-hole medium combustion high-temperature air generating system and method thereof |
| CN104764017A (en) * | 2015-04-20 | 2015-07-08 | 河北工业大学 | Water-cooling type gas burner |
| CN106402869A (en) * | 2016-11-09 | 2017-02-15 | 沈阳工程学院 | Porous medium burner with cylinders stacked in order |
| CN107893993A (en) * | 2018-01-03 | 2018-04-10 | 沈阳工程学院 | A kind of Self inhaling porous media heating furnace |
| CN108844061A (en) * | 2018-08-29 | 2018-11-20 | 沈阳工程学院 | A kind of backheating type liquid fuel porous medium burner |
-
2019
- 2019-03-05 CN CN201910164087.9A patent/CN109869719A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10344979A1 (en) * | 2003-09-27 | 2005-04-28 | Gvp Ges Zur Vermarktung Der Po | Device for evaporating and/or burning substances has device for electrically heating porous body and pores forming pore chamber have pore size that enables combustion |
| CN1740639A (en) * | 2005-09-21 | 2006-03-01 | 浙江大学 | Reciprocating multi-hole medium combustion high-temperature air generating system and method thereof |
| CN104764017A (en) * | 2015-04-20 | 2015-07-08 | 河北工业大学 | Water-cooling type gas burner |
| CN106402869A (en) * | 2016-11-09 | 2017-02-15 | 沈阳工程学院 | Porous medium burner with cylinders stacked in order |
| CN107893993A (en) * | 2018-01-03 | 2018-04-10 | 沈阳工程学院 | A kind of Self inhaling porous media heating furnace |
| CN108844061A (en) * | 2018-08-29 | 2018-11-20 | 沈阳工程学院 | A kind of backheating type liquid fuel porous medium burner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853771A (en) * | 2020-07-28 | 2020-10-30 | 北京理工大学 | Liquid fuel porous medium combustor with cold flame pre-evaporation function |
| CN111853771B (en) * | 2020-07-28 | 2022-08-09 | 北京理工大学 | Liquid fuel porous medium combustor with cold flame pre-evaporation function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190611 |